/Engine/Plugins/Enterprise/DataprepEditor/Source/DataprepCore/Public/DataprepActionAsset.h
Allow an observer to be notified when a step is about to be removed from the action
The event that will be broadcasted
[FOnStepAboutToBeRemoved](API\Plugins\DataprepCore\FOnStepAboutToBeRemoved) & GetOnStepAboutToBeRemoved()